Device for supplying compressed air.



L. GALLI. DEVICE FOR SUPPLYING UOMPRBSSED AIR. APPLIOATION FILED APR. 24, 1907.

952,799. Patented Mar. 22,1910.

2 SHEETS-SHEET 1.

INVENTOH AFGHN L. GALLI. DEVICE FOR SUPPLYING GOMPREfiSED AIR.

APPLICATION FILED APR. 24, 1907. 952399. Patented Mar.22, 1910. 2 SHEETS-SHEET 2.

. WITNESSES:

LOUIS GALLI, OF NEW YORK, N. Y.

DEVICE FOB. SUPPLYING COMPRESSED AIR.

Specification of Letters Patent.

Patented Mar. 22, 191d.

To all] 207mm it may concern:

Be it known that I, LOUIS GALLI, a citizen of the Republic of Switzerland, and residentof New York, in the county of New York and State of N cw York, have invented certain new and useful Improvements in De vices for Supplying Compressed Air, of which the following is a specification.

Myinvention relates to improvements in devices for supplying compressed air, and particularly to devices for pumping up automobile tires, and more particularly to. those devices connected with or operated by the engine of the car itself.

The objects of my invention are to provide a convenient, economical, simple, efiective, easily operated and satisfactory arrangement bywhich a force of compressed air may be obtained, and particularly such a device as can be readily attached to an exist ing engine, I accomplish these ends by the means described, illustrated and claimed in the accompanying specification, drawings and. claims, in which drawings like charac ters of reference refer to like parts throughout the respective views.

Figure l is an elevation of one cylinder of a multiple cylinder engine partially in section and showing;- parts broken away to show the interior structure, and en'1bodyin my improvement. Fig. 2 is a plan of a portion of the device coi'istituting my llllprovement. Fig. 3 is a side view of amultiple cylinder engine to which my invention has been applied.

In the figures, 1 is one cylinder of a multiple cylinder engine; 2 the piston; 3-- the inlet valve; 4- the inlet valve stein;

' 5- lift rod of the inlet valve stem actuated by the ordinary cam; t3-- the outlet valve; 'T- the outlet passage; 8-- the outlet valve stem; 9 the lower part ofthe out-let lift rod actuated by the usual rain; 10- body of a double valve adapted to be attached to the cylinder, preferably over the outlet valve;

1() hose nipple; ll-1'2 check balls;

1ll2-- ball valve seats; A-- being'a valve by which the air can be admitted to or cut off from the cylinder. 13-li-i5 l6- l7lS-ll)- cutting'out device comprising the plate 13-, securing pins dd, pivot -15 spring l,(3, lever -17---, stud -18-- and nut 19-.

In many instances where explosive engines are utilized, it is des ble to obtain a quantity of compressed air, and this is l particularly true in the case of automobiles, where not only is a quantity of air under pressure often necessary, but this air must be comparatively pure; for instance, Where it is desired to pump up the tires. Heretofore it has generallybeen necessary to till the tires by the laborious method of hand or foot pumping-at once slow and tiresome. It is, moreover, impracticable and unsatisfactory to fill the tires with the burned gases -scavenged from. the cylinders, since the same injuriously affectthe rubber of the tires.

The operation of the device is as follows, taking, for example, the occasion of pumping up a tire The plates 13 being secured to the top of the lift rods 5- and 9-- by the pins -l4, and the levers -17 being thrown over in such Way that the studs 18 (adjusted and held by the nut -l9) are directly under the valve stems -d and S- (it being understood, of course, that this attachment is applied to both the inlet and outlet valves); the valves are, therefore, operatedby the'nsnal cam and in the usual way. When it is desired ..to commence,puinping, however, the levers -17 are thrown over, thus removing the studs -i 8 from their position intermecommences a, down stroke,

diate the valve stems. and lift rods-that is. -jt and of the inlet valve. and --t3-- and ll--- ot the outlet valve. it is evident, therefore, that the n'iotion ot' the cams can no longer be transmitted to the valves. The cylinder, therefore, becomes in operative, so far as giving any propulsive effect, but since the piston is nevertheless reciprocated within the cylinder by the operation of the remaining cylinders of the engine, the cylinder is thus turned into a pump, and, in order to take advantage of -----'llis, by the atmosphere, and as here,

shown, by gravity, forced against its -ltl--, thus preventing the withdrawal of receptacle, Al; the beginning of the upstroke, the air which has filled the cylinder the air already pumped to the tire or olher during this operation jusl: described is, of course, forced out, bringing the ball 12- againstits seat --l2 and forcing the hall -1l away from its --fl1-- and thence passing into the tire or other recep- E-EP ill.

tacle-the operation being repeated indelinitely. It will be evident that this operation can be accomplished without stopping the engine and by merely manipulating the levers 17-- on the two main engine valves, and the valve A-, and that the cylinder can he made again instantly cooperative With the other cylinders of the engine by merely moving the levers -1Y- to their normal and. original position lhe valve J i being opened or closed according as tl-c cylinder is or is not in operation as an air pump,

What I claim and desire "lo protect by Letlers Patent is 1. An engine comprising a plurality o'l cylinders; a piston in each of said cylinders; gas inlet and exhaust valves lfor each cylinder; means for rendering the valves ol. one cylinder inoperative, said means comprising lift rods; studs rotatable and adjustable upon said lift rods, and adapled to engage thc-sten s of said valves; an air inlet and outlet allacluucnt for said cylinder, removably mounted therein, said attachment coinprising an inlei; valve operaiing under allinospheric pressure lo admit air to the cyliir der; and a valved oullel; (o said altaclnnent operating to permit the egress of air from the cylinder; and a lln-olllc inl'cl'inodiatd said valves and lhc cylinder 'l"or inl'crrupling the communication hclvvccu the valves and cylinder.

An engine comprising a plurality ol. cvlinders; a piston in each of said. cylinders; gas inlet and exhaust valves for said cyliuders; means for converting one ol' said cyll indcrs inl'o an air pinup, said means conr prising lil'i rods, rotatable sluds mounted upon said lilil' IOLlSlJUllllllllY engaging l'he valve sl'cins o'l saidgas inlcc' and (XlHHlSl valves of said cylinder, hut adaplcd lo he rotated so as to render said valves inoperative; and a cou'ihincd air inlet and outlet aliacluncnl; for said cylinder comprising a valve opera'ling under alinosphcric pressure to admit air lo said cylinder upon the sum lion stroke of said piston; a valved oullcli eaavee poi-milling llic egress of air through said ullan'hnicnl upon tho compression slrolic ol" said piston; and a valve inlorniediale said valves and said cylinder \vhei'ehv said atlaclnnen; may be rcinlei'cd inoperative i). The comliiinalion. in an engine having a pluraliiy of v'jzyliudci's, valves for each (if said cylinders, and means for holding said valves of one only of said cvlinders inoperative, of valve mechanism connnunicaling with said cylinder having; said valves adapted. to be rendered inopcralivc, whereby said last inciuioned. cylinder can he converted into a pump.

-'l. The conlliinalion, in a niulll-cylinder engine, of means: for main iining the valves oi one cylinder only of said engine, inoperalive, and a double valve member connuuni- (rating vvil'h said cylinder and perniilling the entrance of air through one oi? its valves at one stroke ol the pislon d pernlitling escape of the air from sai cylinder through the other of its valves, at a subsequent stroke ol? the piston, said other cylinders reinai'hing operative to drive said one cylinder.

3. The couibinalion, in a niulti-cylinder engine. each cylinder of which has valves and lil't rods for actuaiing said valves, 0i inc-ans for rendering said r ds of one'ofsaid cyliiulers inoperative whereby said valves of said one cylinder are held shut and a double valve member coinnuinicaling Willi said cylindcr and permitting the entrance of air thereinto alone stroke lhe pistons, and pcrniitlilugthe escape of the air from said cylinder at the succeeding stroke of the pisl'on.

(3. The couihiiuilion. in a inulli-cyliiuler engine. cuch cylindL-r o l which has valves and lil'l rods, said lil'l rods being sectional, a SOUllUll of each of said rods heing bodily niovahlc, \vherehy it can be displaced lo render its valve iin'n'iera'live, of member having a pasrage connnunir ling with said cylimler, l urlher passages conununicaling \vilh said first passage and a oi'ie ivay valve in' each of said further passag'es, said i eniher having: means for conuecling one oi. raid lui'lhcr passages \vilhan air conduil.

Signed at New York in 'lhc counly of New York. and hllal'c ol Tle'vv York 'lhis lTlh dzvv of April, ll OT.

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